Improvement in machinery for sizing the backs of carpets



UNITED STATES HENRY G. THOMPSON,

0F NEW YORK, N. 1v.

IMPROVEMENT IN MACHINERY FOR SIZIIIIG THE BACKS 0F CARPETS,

pecilication forming part of' Letters Patent No. 36,73S, dated October 11. lvlh.

`the carpet in it, the better to exhibit the arrangement of the parts. Fig. 2 is anelevation of the right-hand side ofthe machine; Fig. S, an elevation of the left-hand side, and Fig. 4- a longitudinalvertical section with the carpet 4i n position.

Thesamelelters indicate like parts in all the figures. 4

rlhe object of any-said invention is to size the backs of that class of carpetswhich are woven on a plain back with a pile on the upper surface, and in which thc pile is formed over Wires or cquivalentvmeans in the act of weaving-such as 'Brussels and velvet carpets.`

In the manufacture of such fabrics ithas been the practice to size the back, for the purpose of contracting the fabric by the action of the moisture of the sizing matter on the threads of the web, to render the pile ou the face of the fabric more compact, and .to Vgive more stiftness to the whole fabricwhen'the sizing dries. The sizing has heretofore been applied with a hand-brush and dried in th-e atmosphere or by heated air; but this mode ot' procedure is very laborious, the sizing mattcrfails to enter to a sufficient extent into the web of the fabric, and in drying does notleave the fabric sufficiently smooth. By my' said invention I overcome all these di flculties. v

In the accompanyingdrawings, a represents a suitable frame, and b a smooth free roller under which the carpet c to be sized passes, and d another .roller over which the carpet passes. lThe periphery of this roller is armed with fine teeth or points to hold onto the under surface or back of the carpet as it passes over it, the shaft of the said roller being provided at cach end with a frictiolrpulley, d d,

and friction-brake to make sufficient friction to hold `back the carpet when pulled through by machinery at the other end, that it may be under tension during the operations of sizing andl drying. rThe friction of the brakes can be regulated at pleasure by screws or other wellu lknown equivalent means to regulate the ten sion. From the last-described roller the carpet passes under an inverted table, e, which f f, on which it can slide for adjustment by nuts, above and below it, and tapped onto the vertical reds f jf f f. The face of the pile of the carpet passcsin contact with the under fnce of the said table, and thence passes over supporting-rollers f1 y, tu and over a hollow drying and smootl'xing cylinder, h., to the mechanism by which it is drawn along through the machine by a rcgnlaumotion. This drawing mechanism consists of a roller, t', armed on its peripheryT with pins to take into the web, and it receives motion from the main drviug-slmft j by a belt, J", and train of cog-wheels and pinons 7.' Z m '11', and this roller in turn communicates motion to two other rollers, op, by a train of cog-wheels, q1' s. The' carpet from the drying and smootlliing cylinder passes around the roller ion the inside, under it, thence over and under the roller o, and over the roller p, by which it is dropped onto the floor or a suitable platform for the purpose.

As the carpet is drawn with a regular mo tion by this mechanism, and the roller d at the other end, over which it passes, is controlled by an adjustable frictiolrlnake, any degrce'otl tension can be given to it in its'passage through the machine.

Below the inverted table c there is a rotating brush, t, formed of rows of stiff bristles projecting from the surface of :1- cylindcr, and so placed relatively to the uinlcismf'ace of the table c that while the pile or face of the carpet passes` in contact with and is kept smooth and even by the under surface of the table, the brush acts with considerable force against the undcrfaee or back for the purpose' of applying-the sizing-matter to such surface and forcing it` into the meslles of the web. The brush is rotated in the direction of the arrow (sce Fig. 2) by a belt, a, from a pulley, c, on the dri vingsiiaft, tea pulley, 1r, on the shaft of the brush.

The liquid sizing-matter, prepared in the usual manner for sizing'fabres, is contained in a vat, w, from whichit .is taken byfafroller,

y, the lower part of which runs in the sizing, and from the periphery of' this roller it is is supported at the four corners by rods ff' taken up by the periphery of another roller,

z, and presented to the rows of bristles of the rotating brush, by which it is taken and applied, as described. i

Motion is communicated to the rollers y and z from a pulley, a', (see Fig. 3,) on the shaft ofthe brush by belts and pulleys b c d e" f and train of cog-wheels g h i i.

steam-pipes, j', connected at their ends with two cross-pipes, k and Z.' The pipe k is to be connected bya branch pipe, m', with any suitable steam-generator, and the other, l', provided with a discharge-pipe, a', to carry otf the steam and water of condensation.

The pipes are to be heated by the circulation of steam through them, and ythe heat radiated from them, and the current of heated air induced by the rotating fan 1f on thc vertical shaft u' will partially dry the sizing-mat` ter applied to the under face of the web, so vthat it shall not adhere and accumulate on the surface of the cylinder'to which it next passes, and whose oilice it is to nally dry the sizing and keep the under surface of the carpet smooth and'eve'n during such inal v drying.

The hollow cylinder h is heated' by steam, the journals o o being hollow and adapted in any-ot the well-known modes to turn on pipes p p', one of them connected with a steam-generator to supply the steam, and the other for the discharge of the steam. The

ter on a lioor than when sized byhand as heretofore practiced.

It will be obvious that ythe series of pipes and the drying-cylinder "may be heated by the circulation of heated atmospheric air instead4 of' steam, although I prefer the use of steam; and it will also be obvious that the sizing applied to the carpet may be partially dried as it passes to the drying-cylinder by a blast of heated air instead of heated pipes; and it will also be obvious thatv other and equivalent means may be substituted for the mechanism herein described for drawing the carpet regularly through the machine and keeping it dis- -tended while the sizing is applied and dried;

and that instead of making the table adjustable relativelyto the brush,the table may be permanent and the brush made adjustable.

NVhat l claim as my invention, and desire to secure by Letters Patent iu machinery for sizing carpets, is-

1. The combination of the rotating brush and the adjustable table, for the purpose described, the distance between .the two being adjustable, substantially as and for the purpose described.

2. The'combination of the rotating brush and table,with thel mechanism for moving and keeping the carpet distended, substantially as and for the purpose set forth.`

3. The combination of the rotating brush, the table, the mechanism for moving the carpet and keeping it distended, and the drying and smoothing cylinder, substantially as and for the purpose described. i

, 4. The combination'of the rotating brush, the table, the mechanism for moving andl keeping the carpet distended, the drying and' smoothing cylinder,andthe` interposed drying apparatus, or the equivalent thereof, for partially dryingthe sizing before it reaches the surface` of the drying-cylinder, substantially as described.

HENRY G. THOMPSON.

Witnesses:

WM. HiBisrlor, A, DE LACY. 

